SOLUTION: Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this. 3x + y = 26 -6x + y = -37 i need help wit

Algebra ->  Problems-with-consecutive-odd-even-integers -> SOLUTION: Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this. 3x + y = 26 -6x + y = -37 i need help wit      Log On


   

Question 370357:
Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this.
3x + y = 26
-6x + y = -37
i need help with a graph so i can understand this
Found 2 solutions by Fombitz, Alan3354:
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.3x+%2B+y+=+26
2.-6x+%2B+y+=+-37
From eq. 1,
y=-3x%2B26
Substitute into eq. 2,
-6x%2B%28-3x%2B26%29=-37
-9x%2B26=-37
-9x=-63
highlight%28x=7%29
Then from eq. 1,
y=-3%287%29%2B26
y=-21%2B26
highlight%28y=5%29
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3x+%2B+y+=+26
y=-3x%2B26
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-6x+%2B+y+=+-37
y=6x-37
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Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Solve eqn 1 for y
Sub for y in eqn 2